Stability and Bifurcation of Flezible Rotor System with Hydrodynamic Bearing Supports
Nonlinear dynamic behaviors of hydrodynamic bearing-flexible rotor system are analyzed. A local iteration method consisting of improved Wilson-θ method, predictor corrector mechanism and Newton-Raphson method is proposed to calculate nonlinear dynamic responses. By the proposed method, the iterations are only executed on nonlinear degrees of freedom. The stability and bifurcation type of the periodic responses are determined by Floquet theory. The numerical results reveal periodic, quasi-periodic, co-existing, jump solutions of rich and complex nonlinear behaviors of the system, and show that the proposed methods not only save computing cost but also have high precision.
Hydrodynamic bearing nonlinear stability
Yongfang Zhang Yanjun Lu Rong Dai
Xian University of Technology Xian,China Shaanxi Association for Science and Technology Xian,China
国际会议
长沙
英文
1063-1067
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）